Automatic valve.



No. 836,604. PATENTED NOV; 20. 1906. H. S. PINKERTON. AUTOMATIC VALVE.

APPLICATION FILED MAY 17, 1904.

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UNITED STATES PATENT OFFICE.

HENRY S. PINKERTON, OF JUNO, TEXAS.

AUTOMATIC VALVE.

Specification of Letters Patent.

Patented Nov. 20-, 1 906.

Application filedMay 17, 1904. Serial No. 208,458.

Texas, have invented new and useful Improvements in Automatic Valves, of which the following is a specification.

My invention relates to float-valves, and has for its objects to provide a valve that is actuated through leverage with considerable power to open and close quickly said valve under a given adjustment and which is simple, strong, and effective in its construction.

To such end the invention consists in certain features of construction, which will be pointed out, described, and claimed.

Referring to the drawings, Figure 1 shows a side elevation of the device in its application to the discharge end of a supply-pipe that is shown in feeding connection with a tank. Fig. 2 represents a like view of the device attached to the end of the pipe, while Fig. 3 indicates a top plan view of Fig. Fig. 4 is a perspective view showing one end of the operating-lever, while Fig. 5 indicates a like view of modified form of operatinglever. Fig. 6 represents in perspective the operating-lever-supporting yoke or frame, while Fig. 7 represents a like view with the valve-plate attached thereto. Fig. 8 indicates a top plan view of the valve-plate, while Fig. 9 shows a like view of the valve; Fig. 1.0, a vertical section of said valve.

Like characters indicate like parts in the several figures.

11 designates the tank, and 12 the waterlevel therein.

The tank is fed with water by the supplypipe 13, which enters the side, as shown, and which terminates with a screw-threaded end, upon which is secured a small flange-plate 14, that serves as a lock-nut against which the valve-base 15 abuts. The valvebase or plate 15 has a central screw-threaded valve-opening 16 of a size to allow it to engage with and screw on flush with the end of the pipe 13 to provide a valve-seat. This plate is also provided at opposite points with the ears or projections 17 and screw-holes therein, (indicated at 18.)

19 designates a double yoke or frame that comprises U-shaped side bars 20, arranged in spaced parallelism, which are preferably made to extend from the cross-bar 21 and which terminate in a folded end 21 to form. one integral part. The double yoke is secured at its respective ends to the projection 17 of the valve-plate 15 by bolts 22, as shown. The valve proper, 23, comprises a leather disk 23, havinga flap extension 24, and which is reinforced on its front face by the metal disk 25, the latter being provided centrally with a protuberance or fin 26 The valve thus constructed is fiexiblyattached or hinged to the valve-plate 15 by bolts, as shown. The valve thus seated is governed in its opening and closing movements by the fioat 27 and the pivoted operating-lever 28,

which latter is shown as being directly and pivotally connected at X to the valve 23. The float 27 has the body thereof preferably formed from a single piece of steel struck up into shape by any of the well-known methods, and over the said body is a cover 27 which is also formed from a single piece of material and pressed into shape. The advantage of forming the body and cover of the float without oints resides in the durability of the same arising from less liability of the parts of the float to rust through and leak or become filled with water. The outer end of the lever 28 is pivotally attached to the lower portion of an embracing or securing strap 28 which is bent around and caused to snugly fit the float, and the upper terminals thereof are soldered to the cover. By applying the embracing or securing strap 28, as set forth, it is unnecessary to puncture any part of the float for the reception of rivets or other fastenings, and by this means of attaching the lever the durability of the float is further increased.

29 designates a swinging link which is pivotally connected at one end between the side bars 20 of the yoke-frame and at its opposite end to the operating-lever 28. In Fig. 5 the operating-lever is shown as comprising two flat members 30, that are offset at one end to provide forked projections 31 to serve for connection with the valve 23, while it also provides such offsets to provide for a slot connection with the swinging link 29. It will be observed that by connecting the link 29 to the offset portion 28 of the lever 28 the link is so disposed as to remain always out of alinement with that portion of the lever intermediate the link and valve. This construction provides a ainst the valve sticking, which would be liab e to result with the link and lever alined in operation. This arrangement of the link also provides for the application of gradually-increased closing pressure to the valve, as the link is always at an angle to the operating part of the lever. From this construction it is evident that when the water is low in the tank the float will drop, causing the valve to be swung open with the application of leverage through the operatinglever and its connected swingin" link. When the water from the sup ply-pipe as reached a predetermined level, the float will cause, through the operating-lever, a return with pressure of the valve to its seat, and thereby check any further flow from the supply-pipe. Having thus described my invention, What I claim is A float-valve for tanks comprising a supply-pipe with a screw-threaded inner end aving a cylindrical ring-flange therewith, a yoke provided with curved bars or arms which are spaced apart by intact cross-bars at their terminals, a central screw-threaded base-piece having opposite peripheral proj ections which serve to be mounted between the arms and secured to the said cross-bars, the screw-threaded end of the supply-pipe being secured to the central screw-threads of the base-piece and the ring on the ipe serving to contact with the outer face 0 the basepiece, a flexible valve secured to the basepiece and having a reinforced disk, a bifurcated lever pivotally connected to the disk at one end, its opposite end being pivoted to the float, and a swingin link having one end pivoted to the lever an its opposite end pivoted between the arms of the yoke, substantially as specified.

In testimony whereof I aflix my in presence of two witnesses.

HENRY S. PINKERTON.

Witnesses:

PAUL F. DARDEN, J. W. PINKER'roN.

signature 

